20979737072

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{10259}}^1$

素因数の和:10355

約数の個数: 120

約数和(自身を含む): 50533372800

約数和(自身を除く): 29553635728

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 112, 124, 133, 152, 217, 248, 266, 304, 434, 496, 532, 589, 868, 961, 1064, 1178, 1736, 1922, 2128, 2356, 3472, 3844, 4123, 4712, 6727, 7688, 8246, 9424, 10259, 13454, 15376, 16492, 18259, 20518, 26908, 32984, 36518, 41036, 53816, 65968, 71813, 73036, 82072, 107632, 127813, 143626, 146072, 164144, 194921, 255626, 287252, 292144, 318029, 389842, 511252, 574504, 636058, 779684, 1022504, 1149008, 1272116, 1364447, 1559368, 2045008, 2226203, 2544232, 2728894, 3118736, 4452406, 5088464, 5457788, 6042551, 8904812, 9858899, 10915576, 12085102, 17809624, 19717798, 21831152, 24170204, 35619248, 39435596, 42297857, 48340408, 69012293, 78871192, 84595714, 96680816, 138024586, 157742384, 169191428, 187319081, 276049172, 338382856, 374638162, 552098344, 676765712, 749276324, 1104196688, 1311233567, 1498552648, 2622467134, 2997105296, 5244934268, 10489868536, 20979737072]

約数ペア:

[(1, 20979737072), (2, 10489868536), (4, 5244934268), (7, 2997105296), (8, 2622467134), (14, 1498552648), (16, 1311233567), (19, 1104196688), (28, 749276324), (31, 676765712), (38, 552098344), (56, 374638162), (62, 338382856), (76, 276049172), (112, 187319081), (124, 169191428), (133, 157742384), (152, 138024586), (217, 96680816), (248, 84595714), (266, 78871192), (304, 69012293), (434, 48340408), (496, 42297857), (532, 39435596), (589, 35619248), (868, 24170204), (961, 21831152), (1064, 19717798), (1178, 17809624), (1736, 12085102), (1922, 10915576), (2128, 9858899), (2356, 8904812), (3472, 6042551), (3844, 5457788), (4123, 5088464), (4712, 4452406), (6727, 3118736), (7688, 2728894), (8246, 2544232), (9424, 2226203), (10259, 2045008), (13454, 1559368), (15376, 1364447), (16492, 1272116), (18259, 1149008), (20518, 1022504), (26908, 779684), (32984, 636058), (36518, 574504), (41036, 511252), (53816, 389842), (65968, 318029), (71813, 292144), (73036, 287252), (82072, 255626), (107632, 194921), (127813, 164144), (143626, 146072)]